Back support for a chair



FIG. 1 is a perspective view of a back support for a chair, showing mynew design;

FIG. 2 is a front elevational view;

FIG. 3 is a top plan view, taken from FIG. 5;

FIG. 4 is a rear elevational view;

FIG. 5 is a side elevational view, the opposite side being a mirrorimage thereof;

FIG. 6 is a bottom plan view, taken from FIG. 5;

FIG. 7 is a perspective view of a back support for a chair, showing analternate embodiment of my new design;

FIG. 8 is a front elevational view;

FIG. 9 is a top plan view, taken from FIG. 11;

FIG. 10 is a rear elevational view;

FIG. 11 is a side elevational view, the opposite side being a mirrorimage thereof; and,

FIG. 12 is a bottom plan view, taken from FIG. 11.

The ornamental design for a back support for a chair, as shown anddescribed.